Description: Using noise reduction technology, it has clear communication effect and pure sound effect. Calling headset is ergonomic, plug and play, which is very convenient and has high efficiency. It is made of ABS and metal material. The length of this product is 160cm. With strong compatibility, it is suitable for all USB audio interface devices. High-quality headphones bring clear sound quality. Item Name: Earphone Material: ABS, Metal Style A: Single Ear USB Type Style B: Separate USB Non-luminous Type Style C: Single Ear 3.5mm Type Frequency Response Range: 20-20000HZ Features: Noise Reduction, Plug And Play, Comfortable Wearing Size Details: Length: 160cm/62.99" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Earphone